Portable vacuum-pump.



Jv. H. TEMPLIN.

PORTABLE VACUUM PUMP.

APPLICATION FILED Nov. 1s, 1909.

Patented May 3, 1910.

4 SHEETS-SHEET l.

NVENTOR juif/ f6 WTN SSES: 7 1,476.

J. H. TEMPLIN.

PORTABLE VACUUM PUMP.

APPLIOATION FILED Nov.13,19o9.

956,784. Patented May 3, 1910.

4 SHEETS-SHEET 2.

WITN SSES INVENTOR J. H. TEMPLIN.

PORTABLE VACUUM PUMP.

APPLICATION FILED Nov.13, 1909.

Patented Ma'y 3, 1910.

4 SHEETS-SHEBT 3.

J. H. TEMPLIN.

PORTABLE VACUUM PUMP.

APPLIUATION FILED Nov.13,1909.

Patented May 3, 1910.

4 SHEETS-SHEET 4.

/EISSES I -Y and outin'to the open airrf JOSEPH H. TEMPLIN, orPHILADELPHA, PENNSYLVANIA.

ron'rAnLr. VACUUM-ruin?.

Specification of ietters Patent.

Patented May 3, 1910.

Application filed November 13, 1909. Serial No. 527,924.

To altwhom it may concenf Be it known that I, JOSEPH H. TEMPLIN, acitizen ofthe United States, residing at Philadelphia, in the county ofPhiladelphia and State of Pennsylvania, have invented certain new anduseful Improvements in Portable Vacuum-Pumps, .of which the following isaspecification.

My invention relates to portable vacuum pumps of various modified typesadapted to be used for the well known method of vacuum cleaning.Heretofore vacuum pumps of this type were located in a distinct andseparate or partitioned off chamber from the vacuum or dust separatingcompartment or chamber.

In my improved construction the vacuum chamber forms part of the pumconstruction there being no partition, ori ces, or air passages betweenthe vacuum chamber and the pumping mechanism, the casing whichcovers'the' pump forms the only chamber or compartmentv which Whollysurrounds the mechanism of the pumps. The air-.as it is exhausted fromthe chamber causes an ih'- rush of air into the inlet and as thefree airrushes into the vacuum chamber it circulates freely around the pumpingor exhausting mechanism andV the motors driving same, thereby coolingoff same,before entering into .the pumping mechanism, through same Theobject therefore oflmy-.ijnvent-ionisto reduce' the number of parts andsimplify same, cheapen` the cost of construction, reduce the weight,increase the eiiciency, and make a truly portable and noiseless machineof this character.

In the'accompanying drawings Figure f1 is a vertical section of myapparatus showing a double acting diaphragm pump used as an exhausterfor producing a vacuum.

Fig. 2, -is a similar view .showing a double bellows. Fig. 3 is asimilar view showing an exhaust fan. Fig.'4 is a similar view showinEathree stage turbine.

Simi ar numerals of reference indicate like parts throughout thediere'nt views.

Referring to the drawings 1 is the main casing forming a vacuum. chamber2, and completelysurrounding the pum ing devices. Gaskets 3 and 4interpose between casing 1 and cover 5 also between casing 1 and base 6clamped together respectively by vany well known clamping means form ahernietically sealed chamber 2. Base 6 forms a support for the pum ingmechanism and as shown in Figs. 1 an 2 is provided with an exhaust port7 (used `for blowing purposes when desired) leading direct from thepump.

In Figs. 3 and 4 the exhaust isA taken through the side of the casing at8 when the umping mechanisms are disposed assliown. Vhen they areinverted as in Figs. 1 and 2 the exhaust would be of course transmittedthrough the base at 7 as shown in Figs. 1 and 2. Cover 5 is providedwith an outlet 9 into which the dust-laden air passesl through the wellknown medium of -suction hose and renovator, not shown.

10 is a dust separator supported within the vacuum cham er 2.

11 is an auxiliary separator or plate screen of fine material, saidplate 11 1s disposed loosely on the support 12 incasing 1. It is easilyremovable and is optional whether same is used or not.

In Fig.y 2, I have shown a novel joint .whereby noise, friction andnecessity of and support lubrication are eliminated. Connerting rod 13is pivotally connected to crank pin 14, the opposite end of theconnecting .rod is provided with a yoke'15, said yoke spanning lugs v16freely and terminates angesl.

18 and 18 are another pair ofligs.on-' 'conffI necting plate`19. .e

Between lu s 16 and 18 is llmly clamped a resilient strip 20 of metal orrawhlde. Flanges 17 on yoke 15 are also firmly .clamped to said strip20.

By the above device the upper end of the connecting rod can vibrate withthe crank in and thel lower end can give accordmgly without frictionorlubrication and 1s noiseless. The operation ofthe mechanism is readilyseen. The dust laden air passes into inlet 9 down throu h separator 10which retains the dust therein through auxiliary screen 1'1v thencepassing freely around the motorsl 21 cooling same, thence into theinlets 22 passing through the inlet and outlet valves respectivel andthence out of the exhaust port 23 into t e open air.

In the above system while I have shown my' preferred types I do not wishto limit myself to same or to the exact construction in all details ofsame, as numerous modifications of same can be made by those skilled inthe art and still come within the scope of my invention, asinstead of adouble .acting compressible vacuum producer, is-

tons may be employed, or instead of va ou; ble acting, a single actingmechanism may be employed or as stated before the turbine and fanmechanisms could be inverted or the double acting pump could be invertedfrom its present position and the purpose and operation still remainwithin one casing or vacuum chamber covering the whole mechanism, saidmechanism all operating in'a vacuum element.

. Having thus described my invention what I claim as new and desire tosecure by Letters Patent is 1. As an improved article of manufacture, acasing having a bottom or base, said base provided with an outlet, acover for said casing provided with an inlet, said cover removablyattached and scalable to said casing thereby forming a vacuum chamber,vacuum producing means secured to vsaid bottom or base, a motoroperatively connected with said vacuum producing means, said motor andsaid vacuum producing means being located wholly within said vacuumchamber, and furthermore said vacuum producing means and said motorbeing wholly secured to said bottom. or base and having no contactwhatsoever with the side-walls or top of said vacuum chamber, all incombination as and for the purpose set forth.

2. As an improved article of manufacture, a casing having a detachablecover and base forming a vacuum chamber, in combi nation withvacuumproducing means, means for driving said vacuum producing means, saiddriving means and said vacuum vided with an outlet, vacuum pro ucingmeans secured tosaid base, a motor operatively connected to said vacuumproducing means, said motor and said vacuum producing means being Whollylocated within said vacuum chamber, all in combination as and for thepurpose set forth.

4. As an improved article of manufacture, a casing having a bottom. orbase, said base provided with an outlet, a detachable and scalable coverfor said casing, said elements forming a vacuum chamber, said coverprovided with an inlet adapted to receive a suction hose, vacuumproducing means secured to said bottom or base, a motor operativelyconnected with said vacuum producing means, said motor and said vacuumpro? ducing means having no contact whatsoever -said vacuum producingmeans and the contact face of said bottom or base, to whlch contact facesaid vacuum producing means is secured, all in combination'as and forthe purpose set forth.

5.' In a portable vacuum ump, a pumpchamber, a reciprocating dlsplacingmember or piston located in or attached to said chamber, a pair of lugsdisposed on the side of said displacing member or iston mechanism, astraight flexible mem er dis osed between said pairof lugs, one end osaid member being secured to one of said lugs, the opposite end of saidmember being secured to the other lug, a crank-shaft rovided with :1crank pin, a connecting rodJ pivotally connected at one end with saidcrank pin, the opposite end of said connecting rod adapted to be clampedto the middle portionrof said flexible member, said flexible member,said supporting lugs and said connecting rod being disposedlongitudinally in line with each other in the direction of the travel ofsaid displacing member, whereby a practically rigid connectionlongitudinally as well as a slight-flexibility or resiliencetransversely of said flexible member is attained all in com,

bination with means for driving said crankshaft as and for the purposeset forth.

6. In a portable vacuum pump, a pumpchamber, a reciprocating displacmgmember or piston located in or attached to said pump chamber, drivinglugs 1G and 18 disposed on the side of said displacingmember or pistonmechanisima flexible member 2O disposed between said lugs 16 and 18, oneend of said flexible member 2O being supported by lug 16, the oppositeend of said member 20 being supportedby lug 18, a crank shaft providedwith a crank-pin 14, a connecting rod 18 pivotally connected at one endWith said crank pin 14, the opposite end 17 of said connecting rod 13ada ted to be clamped to the middle portiono said flexible member 20,said flexible member 20, saidA lugs 16 and 18 and said connecting rod 13being 'disposed longitudinally in l1ne with each other, in theirrespective positions, and in a line parallel 'with the direction or axisof the travel of said displacing member or piston, all in combinationwith means for driving said crank-shaft, as and for the purpose setforth.

In testimony whereof I atlix my signature in presence of two witnesses.

- JOSEPH I-I. TEMPLIN.

Witnesses:

WM. I-I. HALL. C. W.` DUNLAP.

